Polycyclic furans from condensations of phenanthrene-9,10-quinone with aryl ethers and phenol

摘要

Phenanthrene-9,10-quinone reacts with anisole in the presence of SnCl4.5H(2)O at 180 degrees C to give 11-methoxybenzo[b] phenanthro[9,10-d]furan and with veratrole to form both the 11,12-dimethoxy and the 10-monomethoxy analogues.